Etymology

Her name was possibly inspired by Kalevala, where one of the heroes is called Ilmari.

Other versions of the legendarium

Earlier in the legendarium, Ilmarë and Eönwë were conceived as the son and daughter of Manwë and Varda, previously referred to as Erinti and Fionwë Urion. Later, Tolkien abandoned the idea of the Children of the Valar.[4]

As Erinti, she was a Valië here of love, music, and beauty, also named Lotesse and Akairis ("bride"), sister of Noldorin and Amillo. The three of them left Valinor and dwelt in Inwenore (later Tol Eressëa). The second half of January was called Enrintion, which was named after her.[5]